Open Subtable MD3
A subtable is always attached to a parent table. It can even have various parent tables in the whole knowledge model. An attached condition subtable is marked by underscore in the parent table's condition subject. An attached action subtable is marked by underscore in the parent table's action value.
Right-click the cell with the underscore. Select Open Subtable. It is displayed having the focus. If it was on screen already, it has the focus now.
Alternatively you can start at Navigator. The subtable is listed at section Tables. Possibly you must click arrow heads to see table hierarchy. Then double-click the subtable name.
In a big knowledge model it can be difficult to find a specific table. The next approach can help. Right-click in Navigator section Tables. Select View Alphabetical. The table names are shown in a simple list, in alphabetical order. Double-click a table name to open.